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Laekna Announces IND Approval of LAE120 (a Novel USP1 Inhibitor) for Treatment of Advanced Solid Tumors by FDA

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Laekna (2105.HK) announced that the FDA has approved the IND for LAE120, an internally discovered USP1 inhibitor, for the treatment of advanced solid tumors. (Photo: Business Wire)
Laekna (2105.HK) announced that the FDA has approved the IND for LAE120, an internally discovered USP1 inhibitor, for the treatment of advanced solid tumors. (Photo: Business Wire)
  • A novel, allosteric and highly potent USP1 inhibitor, LAE120 exhibits robust tumor inhibitory activity across various xenograft models

  • Significantly accelerated the progress of drug discovery leveraging cutting-edge AI models

  • Another potential anti-tumor drug candidate, LAE118 (a mutant-selective PI3Kα inhibitor) also in IND-enabling studies

LOS ANGELES, March 04, 2025--(BUSINESS WIRE)--Laekna (2105.HK) announced that the U.S. Food and Drug Administration (FDA) has approved the IND for LAE120, an internally discovered USP1 inhibitor, for the treatment of advanced solid tumors.

LAE120 is a novel, allosteric and highly potent USP1 inhibitor, displaying monotherapy potency and combination activity with PARP inhibitor in HRD (homologous recombination deficiency) cancers. It has a unique chemical structure differentiated from all the other disclosed USP1 inhibitors and is expected to induce a different conformational change in USP1. LAE120 shows robust tumor inhibitory activity across various xenograft models such as MDA-MB-436 and K562 as a single agent and exhibits synergistic effect in combination with PARP inhibitors. It also demonstrates good therapeutic windows in GLP long-term toxicology study. Laekna is actively exploring partnerships to accelerate the clinical development of LAE120.

"Leveraging our deep know-how and extensive expertise in drug discovery, Laekna has developed a distinctive portfolio of innovative drug candidates through the close collaboration of our Med Chem, Biology and AIDD (AI-driven Drug Discovery) teams, continuously advancing preclinical drug candidates into clinical stage. Laekna has also significantly accelerated the progress of drug discovery by utilizing cutting-edge artificial intelligence tools," said Dr. Justin Gu, Chief Scientific Officer of Laekna. "We look forward to bringing novel drugs to patients as swiftly as possible," he added.

Advancing Diversified Pipelines

Laekna is actively advancing preclinical drug candidates. In the fourth quarter of 2024, another internally discovered anti-tumor drug candidate, LAE118, a potentially best-in-class, mutant-selective PI3Kαinhibitor, has advanced to IND-enabling study. PI3Kα mutations are prevalent in patients with breast, colorectal, lung, endometrial, and numerous other cancers. However, the first-generation drugs targeting PI3Kα inhibit the wild-type and mutant PI3Kα with equal potency, which raises concerns of tolerability and therapeutic efficacy.

As a novel allosteric inhibitor, LAE118 demonstrates excellent potency and selectivity towards various PI3Kα mutants. With superior anti-cancer efficacy and tolerability than other current PI3Kα inhibitors, LAE118 is potentially the best-in-class pan-mutant-selective PI3Kα inhibitor. Laekna has presented the preclinical characterization of LAE118 at the San Antonio Breast Cancer Symposium (SABCS) in December 2024. LAE118 is in IND-enabling studies and IND is expected to be filed in the fourth quarter of 2025.